In which scenario can a software conference bridge from Cisco Unified Communications Manager be used for an audio conference?

The correct answer is A. when all participants use the G.711 codec. A software conference bridge in CUCM is a homogeneous bridge, meaning it requires all conference participants to use the same audio codec. It works only when all participants are using G.711 (option A). It cannot transcode between codecs; therefore, a mix of G.711 and G.729…

Cisco Unified Communications Manager (CUCM)

Question

Options

Awhen all participants use the G.711 codec
Bwhen there are only three participants
Cwhen all participants use both the G.711 and G.729 codecs
Dwhen only SCCP phones are used

How the community answered

(39 responses)

A
87% (34)
B
8% (3)
C
3% (1)
D
3% (1)

Explanation

A software conference bridge in CUCM is a homogeneous bridge, meaning it requires all conference participants to use the same audio codec. It works only when all participants are using G.711 (option A). It cannot transcode between codecs; therefore, a mix of G.711 and G.729 participants (option C) would require a hardware conference bridge with transcoding capability. The three-participant limit (option B) is not the defining constraint-the codec homogeneity is. The restriction to SCCP phones only (option D) is not accurate; the codec requirement is the actual limitation.

Topics

#software conference bridge#codec compatibility#G.711#audio conference

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